RDP through VPN does not work now (used to work)

Hi,
I have a strange situation with remote desktop.  I had a single 2003 server, AD, DNS, DHCP, and RRAS, that needed to be taken down for a couple of days.  I installed a second server, promoted it, configured DNS, DHCP, and took the first server down for maintenance.  Then I brought the first server back on line, but did not have it run DHCP.  Both servers have a part of the scope, so this is not a problem.  Users used to be able to VPN in and connect to PCs/Servers on the network.  Then they could not, so I checked DNS records.  There were some conflicting entries, so I modified as necessary.  Everything works fine from the inside - ping by name, ping by IP, remote desktop.  VPN is able to connect from the outside, and ping internal resources by FQDN and ip.  I can connect to shares on the servers using UNC.  However, when I try and rdp into a server from outside through the VPN it just hangs.  I never get the logon screen, just the error message that says the connection to the remote computerwas broken....